Home / 20,163.37-27,827.13-11,211.70

Finding the Fourth Proportional to 20,163.37, 27,827.13 and 11,211.70

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Solution

The fourth proportional to 20,163.37, 27,827.13 and 11,211.70 is: 15,473.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.37 : 27,827.13 = 11,211.70 : x
  2. Step 2: Convert to fraction form
    20,163.37/27,827.13 = 11,211.70/x
  3. Step 3: Cross multiply
    20,163.37x = 27,827.13 × 11,211.70
  4. Step 4: Simplify right side
    20,163.37x = 311,989,433.42
  5. Step 5: Solve for x
    x = 311,989,433.42/20,163.37
  6. Step 6: Final answer
    x = 15,473.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.